A block of mass m is connected to a peg at point D through a light and
inextensible string of length 18 m. The length of section AB is 3 m. The point of
string is pulled down by applying a force F of 128 N. The block A remains
16
stationary. If the mass of block A is kg, find the value of n.
✓n
В.
9 m
D
A
E
Smooth
F
45°
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